Home / 3,933.98-5,903.82-1,986.32

Finding the Fourth Proportional to 3,933.98, 5,903.82 and 1,986.32

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Solution

The fourth proportional to 3,933.98, 5,903.82 and 1,986.32 is: 2,980.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,933.98 : 5,903.82 = 1,986.32 : x
  2. Step 2: Convert to fraction form
    3,933.98/5,903.82 = 1,986.32/x
  3. Step 3: Cross multiply
    3,933.98x = 5,903.82 × 1,986.32
  4. Step 4: Simplify right side
    3,933.98x = 11,726,875.74
  5. Step 5: Solve for x
    x = 11,726,875.74/3,933.98
  6. Step 6: Final answer
    x = 2,980.92

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.